diff options
Diffstat (limited to 'thirdparty/openssl/crypto/idea/i_skey.c')
| -rw-r--r-- | thirdparty/openssl/crypto/idea/i_skey.c | 171 |
1 files changed, 0 insertions, 171 deletions
diff --git a/thirdparty/openssl/crypto/idea/i_skey.c b/thirdparty/openssl/crypto/idea/i_skey.c deleted file mode 100644 index 5365151335..0000000000 --- a/thirdparty/openssl/crypto/idea/i_skey.c +++ /dev/null @@ -1,171 +0,0 @@ -/* crypto/idea/i_skey.c */ -/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) - * All rights reserved. - * - * This package is an SSL implementation written - * by Eric Young (eay@cryptsoft.com). - * The implementation was written so as to conform with Netscapes SSL. - * - * This library is free for commercial and non-commercial use as long as - * the following conditions are aheared to. The following conditions - * apply to all code found in this distribution, be it the RC4, RSA, - * lhash, DES, etc., code; not just the SSL code. The SSL documentation - * included with this distribution is covered by the same copyright terms - * except that the holder is Tim Hudson (tjh@cryptsoft.com). - * - * Copyright remains Eric Young's, and as such any Copyright notices in - * the code are not to be removed. - * If this package is used in a product, Eric Young should be given attribution - * as the author of the parts of the library used. - * This can be in the form of a textual message at program startup or - * in documentation (online or textual) provided with the package. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * "This product includes cryptographic software written by - * Eric Young (eay@cryptsoft.com)" - * The word 'cryptographic' can be left out if the rouines from the library - * being used are not cryptographic related :-). - * 4. If you include any Windows specific code (or a derivative thereof) from - * the apps directory (application code) you must include an acknowledgement: - * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" - * - * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * The licence and distribution terms for any publically available version or - * derivative of this code cannot be changed. i.e. this code cannot simply be - * copied and put under another distribution licence - * [including the GNU Public Licence.] - */ - -#include <openssl/crypto.h> -#include <openssl/idea.h> -#include "idea_lcl.h" - -static IDEA_INT inverse(unsigned int xin); -void idea_set_encrypt_key(const unsigned char *key, IDEA_KEY_SCHEDULE *ks) -#ifdef OPENSSL_FIPS -{ - fips_cipher_abort(IDEA); - private_idea_set_encrypt_key(key, ks); -} - -void private_idea_set_encrypt_key(const unsigned char *key, - IDEA_KEY_SCHEDULE *ks) -#endif -{ - int i; - register IDEA_INT *kt, *kf, r0, r1, r2; - - kt = &(ks->data[0][0]); - n2s(key, kt[0]); - n2s(key, kt[1]); - n2s(key, kt[2]); - n2s(key, kt[3]); - n2s(key, kt[4]); - n2s(key, kt[5]); - n2s(key, kt[6]); - n2s(key, kt[7]); - - kf = kt; - kt += 8; - for (i = 0; i < 6; i++) { - r2 = kf[1]; - r1 = kf[2]; - *(kt++) = ((r2 << 9) | (r1 >> 7)) & 0xffff; - r0 = kf[3]; - *(kt++) = ((r1 << 9) | (r0 >> 7)) & 0xffff; - r1 = kf[4]; - *(kt++) = ((r0 << 9) | (r1 >> 7)) & 0xffff; - r0 = kf[5]; - *(kt++) = ((r1 << 9) | (r0 >> 7)) & 0xffff; - r1 = kf[6]; - *(kt++) = ((r0 << 9) | (r1 >> 7)) & 0xffff; - r0 = kf[7]; - *(kt++) = ((r1 << 9) | (r0 >> 7)) & 0xffff; - r1 = kf[0]; - if (i >= 5) - break; - *(kt++) = ((r0 << 9) | (r1 >> 7)) & 0xffff; - *(kt++) = ((r1 << 9) | (r2 >> 7)) & 0xffff; - kf += 8; - } -} - -void idea_set_decrypt_key(IDEA_KEY_SCHEDULE *ek, IDEA_KEY_SCHEDULE *dk) -{ - int r; - register IDEA_INT *fp, *tp, t; - - tp = &(dk->data[0][0]); - fp = &(ek->data[8][0]); - for (r = 0; r < 9; r++) { - *(tp++) = inverse(fp[0]); - *(tp++) = ((int)(0x10000L - fp[2]) & 0xffff); - *(tp++) = ((int)(0x10000L - fp[1]) & 0xffff); - *(tp++) = inverse(fp[3]); - if (r == 8) - break; - fp -= 6; - *(tp++) = fp[4]; - *(tp++) = fp[5]; - } - - tp = &(dk->data[0][0]); - t = tp[1]; - tp[1] = tp[2]; - tp[2] = t; - - t = tp[49]; - tp[49] = tp[50]; - tp[50] = t; -} - -/* taken directly from the 'paper' I'll have a look at it later */ -static IDEA_INT inverse(unsigned int xin) -{ - long n1, n2, q, r, b1, b2, t; - - if (xin == 0) - b2 = 0; - else { - n1 = 0x10001; - n2 = xin; - b2 = 1; - b1 = 0; - - do { - r = (n1 % n2); - q = (n1 - r) / n2; - if (r == 0) { - if (b2 < 0) - b2 = 0x10001 + b2; - } else { - n1 = n2; - n2 = r; - t = b2; - b2 = b1 - q * b2; - b1 = t; - } - } while (r != 0); - } - return ((IDEA_INT) b2); -} |